Hamilton By Design shares expert insights into mechanical engineering, 3D laser scanning, SolidWorks modelling, and industrial plant design. Focused on mining, manufacturing, and infrastructure projects, this blog explores scan-to-CAD workflows, fabrication-ready detailing, and engineering-led solutions that reduce risk, improve accuracy, and deliver real-world outcomes for clients, engineers, and fabricators across Australia.
Engineering-Grade LiDAR Scanning | Scan-to-CAD | SolidWorks Modelling | Fabrication Drawings Fabrication projects in Smithfield and Western Sydney frequently involve installing new structural steelwork, pipework, machinery and mechanical equipment within existing industrial facilities. Accurate site measurements are essential when fabricated components must interface with structures and equipment that may have been modified over many years. Hamilton By Design provides professional 3D scanning for fabrication in Smithfield NSW , combining engineering-grade LiDAR scanning with mechanical engineering, SolidWorks CAD modelling, reverse engineering and fabrication drawing services. Our engineering-led approach helps fabricators and industrial contractors capture existing site conditions, identify potential installation conflicts and improve dimensional confidence before manufacturing begins. Explore 3D Scanning for Fabrication in Smithfield NSW Why Accurate Site Measurements Matter for Indu...
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Terrestrial vs LiDAR Scanners
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Terrestrial vs LiDAR Scanners: What’s the Difference and Why It Matters
The terms terrestrial scanner and LiDAR scanner are often used interchangeably — but they don’t mean the same thing.
Understanding the difference is important, particularly when scan data is used for engineering design, fabrication, or as-built documentation.
In this post, we explain the difference in plain language and outline when each scanning approach is fit-for-purpose.
What Is LiDAR?
LiDAR (Light Detection and Ranging) is the technology used to measure distance.
It works by:
Emitting laser pulses
Measuring how long the laser takes to return
Converting those measurements into a 3D point cloud
LiDAR is used across construction, mining, engineering, and infrastructure projects because it can capture complex geometry quickly and accurately.
What Is a Terrestrial Scanner?
A terrestrial scanner describes how a LiDAR scanner is deployed.
Terrestrial scanning means the scanner is:
Ground-based
Typically tripod-mounted
Capturing data from fixed, controlled positions
Most modern terrestrial scanners use LiDAR technology, but the term terrestrial refers to the deployment method, not the measurement system.
How the Two Terms Relate
Put simply:
LiDAR is the technology. Terrestrial is the platform.
Most terrestrial scanners are LiDAR scanners — but not all LiDAR scanners are terrestrial.
Other common LiDAR platforms include:
Mobile or SLAM scanners
Vehicle-mounted scanners
Drone or aerial LiDAR
Each has strengths and limitations depending on how the data will be used.
Why This Matters for Engineering Projects
Problems often arise when:
A LiDAR scan is assumed to be engineering-grade
Mobile or SLAM scans are used for fabrication or fit-up
Accuracy and limitations aren’t aligned with the intended outcome
This doesn’t mean one method is wrong — it means scanner choice should match project risk, accuracy requirements, and deliverables.
Which Scanning Method Should You Use?
A simple guide:
Fabrication or replacement parts → Terrestrial LiDAR
Shutdown-critical fit-up → Terrestrial LiDAR
Structural verification → Terrestrial LiDAR
Rapid site context or layout → Mobile / SLAM LiDAR
Large areas or access constraints → Drone LiDAR
There is no single “best” scanner — only the most suitable scanner for the outcome you need.
Engineering-Led Scanning
When scan data feeds into engineering design or documentation, higher-control scanning methods are typically required to support defensible outcomes and meet engineering expectations.
That doesn’t remove choice — it simply ensures the assumptions and limitations are clear from the start.
Learn More
We’ve published a full breakdown on our website explaining:
If you’re unsure which scanning approach suits your project, we’re always happy to discuss the options.
About Hamilton By Design
Hamilton By Design is an Australian mechanical engineering consultancy providing engineering-led 3D scanning, reverse engineering, and as-built documentation for industrial, construction, and manufacturing projects.
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